{"id":126286,"date":"2025-02-11T15:30:11","date_gmt":"2025-02-11T14:30:11","guid":{"rendered":"https:\/\/www.immo-invest.ch\/frequenzkamm-ebnet-den-weg-fuer-kompakte-hochpraezisions-photonik\/"},"modified":"2025-02-11T17:02:02","modified_gmt":"2025-02-11T16:02:02","slug":"frequenzkamm-ebnet-den-weg-fuer-kompakte-hochpraezisions-photonik","status":"publish","type":"post","link":"https:\/\/www.immo-invest.ch\/fr\/frequenzkamm-ebnet-den-weg-fuer-kompakte-hochpraezisions-photonik\/","title":{"rendered":"Un peigne de fr\u00e9quences ouvre la voie \u00e0 la photonique compacte de haute pr\u00e9cision"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Frequenzk&auml;mme sind essenzielle Werkzeuge der modernen Optik. Sie erm&ouml;glichen hochpr&auml;zise Messungen und finden Anwendung in der Telekommunikation, Umwelt&uuml;berwachung und sogar der Astrophysik. Doch bislang waren kompakte, energieeffiziente L&ouml;sungen schwer realisierbar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Das neue, von einem internationalen Forschungsteam entwickelte elektrooptische Kammgenerator-Design revolutioniert diese Technologie. Mit mehr als 2000 Kammlinien auf einer Fl&auml;che von nur 1 cm&sup2; bietet es eine bisher unerreichte Pr&auml;zision und Kompaktheit.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Lithiumtantalat als Schl&uuml;sselkomponente<br><\/strong>Im Zentrum der Entwicklung steht Lithiumtantalat (LTO), ein Material, das eine 17-mal geringere Doppelbrechung als Lithiumniobat aufweist. Diese Eigenschaft reduziert Interferenzen zwischen Lichtwellen, was eine gleichm&auml;&szlig;ige und stabile Kamm-Erzeugung erm&ouml;glicht.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Durch die Kombination von Mikrowellen- und optischen Schaltkreisen auf einer einzigen Plattform konnte das Team eine integrierte Dreifachresonanz-Architektur entwickeln, in der drei Felder &ndash; zwei optische und eine Mikrowelle &ndash; harmonisch in Resonanz stehen.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Energieeffizienz und Vielseitigkeit<br><\/strong>Ein entscheidender Fortschritt ist der deutlich reduzierte Energiebedarf: Das neue Design ben&ouml;tigt fast 20-mal weniger Mikrowellenleistung als fr&uuml;here Modelle. Zudem erm&ouml;glicht die kompakte Bauweise eine praktische Integration in photonische Systeme, die zuvor auf sperrige und energieintensive L&ouml;sungen angewiesen waren.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Potenzielle Anwendungen in Hochtechnologiebranchen<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Robotik: Hochpr&auml;zise Laser-Messungen f&uuml;r autonome Systeme<\/li>\n\n\n\n<li>Spektroskopie und Sensorik: Genaue Gasdetektion und Umweltanalysen<\/li>\n\n\n\n<li>Telekommunikation: Effizientere optische Netzwerke mit geringerem Energieverbrauch<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ein Meilenstein f&uuml;r die Photonik<br><\/strong>Das neue Design zeigt das Potenzial der Co-Integration von Mikrowellen- und photonischer Technik f&uuml;r zuk&uuml;nftige Anwendungen. Durch die Kombination von hoher Pr&auml;zision, geringem Energieverbrauch und kompaktem Design k&ouml;nnte diese Entwicklung einen Wendepunkt f&uuml;r optische Technologien darstellen.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Des chercheurs de l&rsquo;EPFL, de la Colorado School of Mines et de la China Academy of Science ont mis au point un peigne de fr\u00e9quences \u00e9lectro-optique \u00e0 tr\u00e8s large bande qui atteint une couverture spectrale spectaculaire de 450 nm. Cette puce \u00e0 base de tantalate de lithium n\u00e9cessite 20 fois moins de puissance que les conceptions pr\u00e9c\u00e9dentes et pourrait ouvrir une nouvelle \u00e8re de miniaturisation et d&rsquo;efficacit\u00e9 en photonique. <\/p>\n","protected":false},"author":2,"featured_media":126154,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pmpro_default_level":"","inline_featured_image":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[8747,22696,743,8735],"tags":[2053,51979,872,3931,2002,51980,51981,51982],"class_list":["post-126286","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energie","category-entreprise","category-immonews-fr","category-proptech-fr","tag-energieeffizienz-fr","tag-frequenzkaemme-fr","tag-immoinvest-fr","tag-immonews-fr","tag-news-fr","tag-optische-messtechnik-fr","tag-photonik-fr","tag-telekommunikation-fr","pmpro-has-access"],"acf":{"bild_mit_ki_erstellt_worden":[],"lead":"Des chercheurs de l'EPFL, de la Colorado School of Mines et de la China Academy of Science ont mis au point un peigne de fr\u00e9quences \u00e9lectro-optique \u00e0 tr\u00e8s large bande qui atteint une couverture spectrale spectaculaire de 450 nm. Cette puce \u00e0 base de tantalate de lithium n\u00e9cessite 20 fois moins de puissance que les conceptions pr\u00e9c\u00e9dentes et pourrait ouvrir une nouvelle \u00e8re de miniaturisation et d'efficacit\u00e9 en photonique. ","autor":"Quelle: myscience, Bild: Junyin Zhang \/ EPFL","ort":"","bildunterschrift":"","bild_im_grid":false,"gallerie":"","newsim":""},"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"Des chercheurs de l&#039;EPFL, de la Colorado School of Mines et de la China Academy of Science ont mis au point un peigne de fr\u00e9quences \u00e9lectro-optique \u00e0 tr\u00e8s large bande qui atteint une couverture spectrale spectaculaire de 450 nm. Cette puce \u00e0 base de tantalate de lithium n\u00e9cessite 20 fois moins de puissance que les conceptions pr\u00e9c\u00e9dentes et pourrait ouvrir une nouvelle \u00e8re de miniaturisation et d&#039;efficacit\u00e9 en photonique.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"immovestuser\"\/>\n\t<meta name=\"google-site-verification\" content=\"fHJKvgWpZCR2zVBHWfkQeFXC11qieUSff0HGNYfuyLA\" \/>\n\t<link rel=\"canonical\" href=\"https:\/\/www.immo-invest.ch\/fr\/frequenzkamm-ebnet-den-weg-fuer-kompakte-hochpraezisions-photonik\/\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"fr_FR\" \/>\n\t\t<meta property=\"og:site_name\" content=\"immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien - Die\u00a0Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"Un peigne de fr\u00e9quences ouvre la voie \u00e0 la photonique compacte de haute pr\u00e9cision - immo!nvest - Die Plattform f\u00fcr Standorte und Immobilien\" \/>\n\t\t<meta property=\"og:description\" content=\"Des chercheurs de l&#039;EPFL, de la Colorado School of Mines et de la China Academy of Science ont mis au point un peigne de fr\u00e9quences \u00e9lectro-optique \u00e0 tr\u00e8s large bande qui atteint une couverture spectrale spectaculaire de 450 nm. 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